surfacelinux.nix

{ config, pkgs, ... }:
let
  linuxsurface={
  revision="8e8811cd283dd1db892a6d1db17c2ea1021b2fdc";
  version="5.4";
  patches=[
    {
      file="0001-surface3-power.patch";
      sha256="0ky17xl138n9mql9ss5zq7hnpw6i4s7961r0f1na3pif4hka19d0";
    }
    {
      file="0002-surface3-oemb.patch";
      sha256="0npxvcm6f75bpmfzs6x7h08dcz9y230pmrnzvb292dcbcwypk4y1";
    }
    {
      file="0003-surface-sam.patch";
      sha256="0p3ha17by8ygkld6mg78m62jvj3yys87gvayfhppj2kjnjh4zr0k";
    }
    {
      file="0004-surface-sam-over-hid.patch";
      sha256="1jk4lqd3zsgfhsfadmlgm5smi9p4wi0cd1j7vy73pnhr8ncf08zc";
    }
    {
      file="0005-wifi.patch";
      sha256="0h95bd8270s9kv6i3g00b7z59yvmjxa30j0z1jd7z1q6qf64z2xv";
    }
    {
      file="0006-ipts.patch";
      sha256="1085vr3ja7pnjmjyac2aq5rjrv29mi4w8d4406xi0l1qfnzpycrl";
    }
  ];
  url="https://raw.githubusercontent.com/linux-surface/linux-surface/${linuxsurface.revision}/patches/${linuxsurface.version}";
  kernelPatches=let
    f = val:{
      patch=builtins.fetchurl {
        url="${linuxsurface.url}/${val.file}";
        sha256=if val.sha256 == "" then
          "0000000000000000000000000000000000000000000000000000000000000000"
          else
            "${val.sha256}";
      };
      name="${val.file}";
    };
  in
    map f linuxsurface.patches;
};
in {
  boot.extraModulePackages = with config.boot.kernelPackages; [ acpi_call ];
  boot.kernelPackages = pkgs.linuxPackages_5_4;
  boot.kernelPatches = linuxsurface.kernelPatches++[{
    patch=./0001-Add-quirk-for-Surface-SAM-I2C-address-space.patch;
    name="0001-Add-quirk-for-Surface-SAM-I2C-address-space.patch";
    extraConfig = ''
                ACPI_DEBUG y
                ACPI_PCI_SLOT y
                #
                # Surface Aggregator Module
                #
#                CONFIG_GPIO_SYSFS=y                         # required for SURFACE_SAM_HPS
#                CONFIG_SURFACE_SAM=m
#                CONFIG_SURFACE_SAM_SSH=m
#                CONFIG_SURFACE_SAM_SSH_DEBUG_DEVICE=y
#                CONFIG_SURFACE_SAM_SAN=m
#                CONFIG_SURFACE_SAM_VHF=m
#                CONFIG_SURFACE_SAM_DTX=m
#                CONFIG_SURFACE_SAM_HPS=m
#                CONFIG_SURFACE_SAM_SID=m
#                CONFIG_SURFACE_SAM_SID_GPELID=m
#                CONFIG_SURFACE_SAM_SID_PERFMODE=m
#                CONFIG_SURFACE_SAM_SID_VHF=m
#                CONFIG_SURFACE_SAM_SID_POWER=m
                #
                # IPTS touchscreen
                #
#                CONFIG_TOUCHSCREEN_IPTS=m
                #
                # Other Drivers
                #
#                CONFIG_INPUT_SOC_BUTTON_ARRAY=m
#                CONFIG_SURFACE_3_POWER_OPREGION=m
#                CONFIG_SURFACE_3_BUTTON=m
#                CONFIG_SURFACE_3_POWER_OPREGION=m
#                CONFIG_SURFACE_PRO3_BUTTON=m
              '';
  }];
}